# NTSB CHI90DEV03: Bellanca 8KCAB, N50671, Lawrenceville, IL, April 16, 1990

- Type: NTSB accident investigation
- Classification: Accident · Minor injuries · Final report
- Date: April 16, 1990, 13:00 local (18:00 UTC)
- Place: Lawrenceville, IL
- Location: 38.7263° N, 87.6873° W: Placed by OpenAirDocs: center of Lawrenceville, IL, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=38.7263&lon=-87.6873&mi=10
- Phase of flight: [Maneuvering](https://openairdocs.org/ntsb-phases/450) (OpenAirDocs' grouping)
- Highest injury: Minor injuries
- Injuries: 1 minor, 1 uninjured
- Status: Completed, report September 21, 1992
- Report: Approved by Office Director
- NTSB case key (mKey): 14497
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CHI90DEV03
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/14497/pdf
- Page: https://openairdocs.org/ntsb/CHI90DEV03

## Probable cause

THE STUDENT PILOT FAILURE TO MAINTAIN FLYING SPEED. CONTRIBUTING TO THE ACCIDENT WAS THE FLIGHT INSTRUCTOR IN THAT THE INSTRUCTOR ALLOWED THE STUDENT TO LET THE AIRSPEEED DISSIPATE BELOW STALL SPEED.

## Analysis

DURING AN AERIAL APPLICATION INSTRUCTIONAL FLIGHT, THE COMMERCIAL RATED STUDENT PILOT PERFORMED A TURN TO REVERSE DIRECTION FOLLOWING A SWATH RUN AND STALLED THE AIRCRAFT AT AN ALTITUDE OF 200 FT AGL. A FULL RECOVERY FROM THE STALL COULD NOT BE MADE DUE TO THE LOW ALTITUDE. THE AIRCRAFT SETTLED INTO A PLOWED FIELD.

## Sequence of events

In NTSB's coding before 2008 (https://www.ntsb.gov/GILS/Documents/codman.pdf).

- Loss of control - in flight, maneuvering - turn to reverse direction
  - airspeed(vs) - not maintained, dual student (cause)
  - supervision - inadequate, pilot in command(cfi) (cause)
  - stall - encountered, dual student (cause)
  - proper descent rate - initiated, pilot in command(cfi)
  - altitude - inadequate, pilot in command(cfi) (contributing factor)
- In flight collision with terrain/water, descent - uncontrolled
  - terrain condition - rough/uneven
  - terrain condition - soft

## Aircraft

- Registration: [N50671](https://openairdocs.org/deregistered/N50671-2017-05-26), registration cancelled 2017-05-26, S/N 600-80 (OpenAirDocs)
- Reported make and model: BELLANCA 8KCAB
- Registry model: [Bellanca 8KCAB](https://openairdocs.org/model/bellanca-8kcab) (registry code 1220801) (OpenAirDocs)
- Category: Airplane
- Serial number: 600-80
- Airframe hours: 1765
- Engines: LYCOMING AE10-320-E1B 180 horsepower reciprocating
- Damage: Substantial damage
- Flight: Instructional, Part 91
- Operator: Vincennes University, doing business as Vincennes University Aviation
- Registered owner: Board Of Trustees
- Airworthiness certificate: Standard, Normal; Standard, Aerobatic
- Last inspection: 100 hour, April 11, 1990, 4 hours before
- Departed: LWV, LAWRENCEVILLE, IL
- Destination: LWV

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 28; commercial, flight instructor; airplane ratings: single-engine land, multi-engine land; instrument ratings: airplane; medical: class 2, valid medical--w/ waivers/lim; seat: rear; flight hours: 3,325 total, 115 in this make and model, 3,200 as pilot in command, 110 in the last 90 days, 40 in the last 30 days, 2 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: 210° at 15 knots
- Visibility: 8 statute miles
- Lowest ceiling: 3,000 ft broken
- Temperature: 57 °F, dew point 45 °F
- Altimeter: 29.00 inHg
- Observed at: HUF, 46 nm away

## FAA reports on this event (1)

The FAA's own accident and incident reports, matched to the aircraft by N-number and date (OpenAirDocs).

- [Accident 19900416009049A](https://openairdocs.org/incident/19900416009049A), Apr 16, 1990: Bbavia 8KCAB, Vincennes, IN, Substantial damage. Aircraft stalled on pull up from a simulated crop spraying run. Was using low power to simulate chemical load.

From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

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